23155663 has 2 divisors, whose sum is σ = 23155664. Its totient is φ = 23155662.

The previous prime is 23155637. The next prime is 23155679. The reversal of 23155663 is 36655132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23155663 - 2⁹ = 23155151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23155063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11577831 + 11577832.

It is an arithmetic number, because the mean of its divisors is an integer number (11577832).

Almost surely, 2^23155663 is an apocalyptic number.

23155663 is a deficient number, since it is larger than the sum of its proper divisors (1).

23155663 is an equidigital number, since it uses as much as digits as its factorization.

23155663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16200, while the sum is 31.

The square root of 23155663 is about 4812.0331461868. The cubic root of 23155663 is about 285.0268282942.

The spelling of 23155663 in words is "twenty-three million, one hundred fifty-five thousand, six hundred sixty-three".